Messages in this thread Patch in this message | | | From | Santosh Shukla <> | Subject | [PATCHv4 7/8] KVM: nSVM: emulate VMEXIT_INVALID case for nested VNMI | Date | Mon, 29 Aug 2022 15:38:49 +0530 |
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If NMI virtualization enabled and NMI_INTERCEPT is unset then next vm entry will exit with #INVALID exit reason.
In order to emulate above (VMEXIT(#INVALID)) scenario for nested environment, extending check for V_NMI_ENABLE, NMI_INTERCEPT bit in func __nested_vmcb_check_controls.
Signed-off-by: Santosh Shukla <santosh.shukla@amd.com> --- arch/x86/kvm/svm/nested.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c index 3d986ec83147..9d031fadcd67 100644 --- a/arch/x86/kvm/svm/nested.c +++ b/arch/x86/kvm/svm/nested.c @@ -296,6 +296,11 @@ static bool __nested_vmcb_check_controls(struct kvm_vcpu *vcpu, if (CC(!nested_svm_check_tlb_ctl(vcpu, control->tlb_ctl))) return false; + if (CC((control->int_ctl & V_NMI_ENABLE) && + !vmcb12_is_intercept(control, INTERCEPT_NMI))) { + return false; + } + return true; } -- 2.25.1
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